Overlooked facts, or is it just me? (Spoilers)

[Kedjane]

Well, I always can notice new things, when I play the game. I missed alot of things too.
But now, I know even how old are Philip, Red and Dr. Richard Eminiss
I think, every times we play the game, we notice something new. That's the one of the many reasons that I love Penumbra.

How do you know how old they all are?
All I can think of is that Philip was born around 1970, so he should be 38 or something like that. And oh, it said Red was 14 in some note aswell, from 1900-something. No clue what Richards age is though.
When Lux Tenebras nears release perhaps there'll be a Penumbra Wiki put up. I'm sure there's a lot of things you can figure out by looking at the various dates in the notes. There are answers to pretty much all old speculation threads now.